swiftlang / swiftlang/swift-java

jextract: Support async closures

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feature:jextract
Dominant language
Swift
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Merged PRs (30d)
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Description

We're not supporting async closures yet, but it should be possible to bridge into them same as with async funcs.

public func schedule(op: () async -> Void) {}      

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start in jextract by reading the existing async function bridging path and compare it with the schedule(op: () async -> Void) closure example. Implement equivalent bridging for async closures, then verify that the example can be consumed through the generated interop surface and that existing async function behavior remains unchanged.

Written by the indexing model from the issue text.

Assessment

Tech stack
swift
Domain
tooling
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
45/100

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